Sigmatostalix integrilabris Pupulin 2003

Photo by Pupulin and The Epidendra Website


Common Name The Entire Lipped Sigmatostalix

Flower Size .08" [2 mm]

Found in Costa Rica in premontane forests on shaded branches and twigs at elevations of 300 to 1000 meters as a miniature to small sized, hot to warm growing epiphyte with elliptic to ovoid, compressed pseudobulbs enveloped basally by 2 to 4 distichous, foliaceous sheaths and carrying a single, apical, green, subcoriaceous, linear-lanceolate, acute, narrowing below into the short, conduplicate, petiolate base leaf that blooms in the later spring on a lateral, to 8" [20 cm] long, paniculate, progressively elongating lateral branches, successively several flowered inflorescence with short, membraneous, triangular-ovate, acute floral bracts.

Similar to S hymenantha but differs in the sessile, entire, obtuse lip with a massive callus that occupies more than 1/3 of the lip lamina.

Synonyms Oncidium integrilabre (Pupulin) M.W.Chase & N.H.Williams 2008

References W3 Tropicos, Kew Monocot list , IPNI ; *Harvard Pap. Bot. 8(1): 45-47, f. 7. Pupulin 2003 drawing fide; AOS Bulletin Vol 77 No 12 2008 as Oncidium integrilabris; Vanishing Beauty, Native Costa Rican Orchids Vol 2 Lacaena to Pteroglossa Pupulin 2020 as Oncidium integrilabre photo fide